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Browse by Category: Main > Material Science
Class Information
Number: 420/74
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Eight percent or more manganese containing > Chromium containing
Description: Alloy or metallic composition which additionally contains chromium.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8535606 Pitting corrosion resistant non-magnetic stainless steel Sep. 17, 2013
8486204 Hinge device and electronic device using the same Jul. 16, 2013
8337749 Lean austenitic stainless steel Dec. 25, 2012
8313691 Lean austenitic stainless steel Nov. 20, 2012
8002909 Medical devices Aug. 23, 2011
7780908 Low nickel containing chromium-nickel-manganese- copper austenitic stainless steel Aug. 24, 2010
7749431 Stainless steel for high-pressure hydrogen gas Jul. 6, 2010
7708841 Component for use in oil field technology made of a material which comprises a corrosion-resistant austenitic steel alloy May. 4, 2010
7658883 Interstitially strengthened high carbon and high nitrogen austenitic alloys, oilfield apparatus comprising same, and methods of making and using same Feb. 9, 2010
7067020 Bulk-solidifying high manganese non-ferromagnetic amorphous steel alloys and related method of using and making the same Jun. 27, 2006
6824672 Use of austenitic stainless steels in applications requiring anti-coking properties Nov. 30, 2004
6692838 Metal dusting resistant alloys Feb. 17, 2004
6620377 High hardness stainless steel for screws used in magnetic memory devices Sep. 16, 2003
6617050 Low density and high ductility alloy steel for a golf club head Sep. 9, 2003
6500279 Material having the capacity of absorbing vibration Dec. 31, 2002
6361740 Suspension arm and load beam for a disk drive Mar. 26, 2002
5910285 Austenitic acid corrosion-resistant stainless steel of Al-Mn-Si-N series Jun. 8, 1999
5891388 Fe-Mn vibration damping alloy steel having superior tensile strength and good corrosion resistance Apr. 6, 1999
5833919 Fe-Mn-Cr-Al cryogenix alloy and method of making Nov. 10, 1998
5601782 Abrasive resistant high manganese cast steel Feb. 11, 1997
5529604 Modified stainless steel powder composition Jun. 25, 1996
5278881 Fe-Cr-Mn Alloy Jan. 11, 1994
5252148 Soft magnetic alloy, method for making, magnetic core, magnetic shield and compressed powder core using the same Oct. 12, 1993
5173131 Shape memory stainless alloy Dec. 22, 1992
5096664 Alloys having excellent erosion resistance and stress corrosion cracking resistance Mar. 17, 1992
5069871 Method of using an austenitic steel alloy as a wear part subject to gouging abrasion type metal loss Dec. 3, 1991
4966636 Two-phase high damping capacity F3-Mn-Al-C based alloy Oct. 30, 1990
4957700 High strength non-magnetic stainless steel Sep. 18, 1990
H807 Manganese-stabilized austenitic stainless steels for fusion applications Aug. 7, 1990
4933027 Iron-based shape-memory alloy excellent in shape-memory property, corrosion resistance and high-temperature oxidation resistance Jun. 12, 1990
4929416 Cast steel May. 29, 1990
4929289 Iron-based shape-memory alloy excellent in shape-memory property and corrosion resistance May. 29, 1990
4882124 Alloys having excellent erosion resistance Nov. 21, 1989
4875933 Melting method for producing low chromium corrosion resistant and high damping capacity Fe-Mn-Al-C based alloys Oct. 24, 1989
4865662 Aluminum-manganese-iron stainless steel alloy Sep. 12, 1989
4788034 Age hardenable maetensitic steel Nov. 29, 1988
4721600 Superplastic ferrous duplex-phase alloy and a hot working method therefor Jan. 26, 1988
H326 Mn-Fe base and Mn-Cr-Fe base austenitic alloys Sep. 1, 1987
4637843 Core of a noise filter comprised of an amorphous alloy Jan. 20, 1987
4586957 Iron-base alloy materials having excellent workability May. 6, 1986
4531974 Work-hardenable austenitic manganese steel and method for the production thereof Jul. 30, 1985
4514236 Method of manufacturing an article of non-magnetic austenitic alloy steel for a drill collar Apr. 30, 1985
4512804 Work-hardenable austenitic manganese steel and method for the production thereof Apr. 23, 1985
4481033 High Mn-Cr non-magnetic steel Nov. 6, 1984
4434006 Free cutting steel containing controlled inclusions and the method of making the same Feb. 28, 1984
4425169 Austenitic-manganese steel Jan. 10, 1984
4398951 Fermalloy(Fe-Mn-Al stainless steel) Aug. 16, 1983
4394168 Austenitic wear resistant steel Jul. 19, 1983
4207381 Bimetal and method for manufacturing the same Jun. 10, 1980
4130418 Austenitic wear-resistant steel Dec. 19, 1978

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